Tire-repair tool



April 9, 1929.

T. J. WORRELL ET AL TIRE REPAIR TOOL Filed July 26, 1927 {woooooooo ;oooooooo ZZIWorraZZ, 3W

11oz kix m Patented Apr. 9, 1929.

UNITED STATES PATENT OFFICE.

TEMP J. WORRELL AND LONNIE E. CLARK, OF MEMPHIS, TEXAS.

TIRE-REPAIR TOOL.

Application filed July 26, 1927.

This invention relates to improvements in tire repair tools and particularly to a tool for facilitating the repair of punctures in tubes now commonly used in pneumatic tires.

One object of the invention is to provide an ineXpensive tool with which a punctured tube may be scraped to clean the surface around the puncture and then rubbed to provide a roughened surface on which the patch is to be cemented.

A further object of the invention is to provide a tool of this character provided with neans for facilitating the rapid deflation of a punctured tube.

In the accompanying drawings,

Figure 1 is a plan view of a tool embodying the present improvements;

Fig. is a side elevational view; and

Fig. a bottom plan view.

Fl is a transverse sectional view taken centrally of the tool.

In the preferred embodiment of the invention the tool is made of a single piece of sheet metal. The tool compris a body portion whose top surface is roughened as by punching a multiplicity of holes ll therein, the ragged edges of the metal projec 1 on the face of the tool providing a surface sulticiently rough to permit the surface of the tube to be roughened as is commonly done preparatory to cementing a patch over a puncture in the tube. Before thus roughening the surtace of the tube it is always better to clean that portion. of the tube surface around the puncture and for this purpose one edge portion, preferably an end, of the tool turned upwardly or olt'set as at 12, the edge of this oiiset portion being beveled or otherwise sharpened to form a scra lng edge.

Preferably, a comparatively light sheet of metal is used, but rigidity is imparted to the tool by having the two side edges of the body portion 10 turned upwardly or oifset as at 13. In this way he body portion is reinforced and will not flex when the tool is being used either for scraping or roughening the surface of the tube.

Serial No. 208,508.

Quite frequently the puncture in an inflated tire or tube is so small that the air will escape very slowly requiring the air valve of the tube to be unseated to permit of a more rapid escape of the air. Even this is slow and rather tedious process and to avoidthe same the present tool is provided with a tubular portion extending from the body portion. at the end opposite the scraper lreierably, this tubular portion. l-l is pointed, as by being tapered and near its smaller end or outer extremity it provided with a series of perforations 5. its lar or end, of course, is open so that by inserting the pointed end through the puncture in a tube, air within the tube may pass through the perforations l5 and escape through the open end of said tubular portion. In this way the tube may be rapidly dei'lated without manipulati11;;- the air valve at all.

in using the present tool the puncture, which ma he a rather slow leak, is first located and the tapered portion of the tool inserted so as to completely deflate the tire. The surface around the puncture is then scraped with the scraping edge 12 and alter being thus cleaned it is roughened by rubhing it with the top .iace oi? the body portion 10, the tubular portion being used as a handle during both of these last two opera.- tions. The ordinary patch is then cemented over the puncture in the ordinary way.

What we claim is:

1. A vent tube and scraper, comprising); a tapering body having an opening" inter mediate its ends, and a plate at the hrge end formed with roughened surface acting as a scraper.

2. A vent and scraper for inflatable tubes, comprising a tubular body formed of sheet metal and. tapering substantially from one end to the other and formed \i: h an opening substantially centrally of the body, he body at the large end merging into a llat plate formed with. spurs.

TEMP JJVORRELL. LONNIE E. CLARK. 

